Finishing Taxonomy
Domain Kingdom Phylum (sub-phylum) Class Order Family Genus Species The Phylogenetic Tree Do Kangaroos Prefer Chocolate Or Fruit Generally Speaking?
The 3 Domains
Prokaryotic Unicellular Some of the first life forms on Earth Mostly found in 3 shapes – spheres, rods and spirals Contains a cell wall (amino acids) Ribosomes (70S sedimentation rate) Eg. Gut flora, syphallis, Lactococcus Bacteria
Prokaryotic Unicellular More closely related to Eukarya Live in some of the most extreme conditions on Earth Cell wall (proteins – different from bacteria) Ribosomes (16S sedimentation rate) Eg. Help in element cycling, mutualism with animals Archae
Eukaryotic Unicellular or Multicellular Most complex life forms Cell walls (chitin or cellulose) Ribosomes (80S sedimentation rate) Eg. Amoebas, grasses, mushrooms, elephants Eukarya
Unicellular or multicellular Contains a membrane bound nucleus and mitochondria Organelles! Eukaryotes Unicellular Does not contain a nucleus or mitochondria Lacks membrane bound organelles (ER, golgi bodies, etc.) Prokaryotes Prokaryotes vs. Eukaryotes
Eukaryotic, unicellular Autotrophic or heterotrophic No cell wall Eg. Slime molds, Euglena, Paramecium There are animal-like protists as well as plant-like protists Cause of Malaria Kingdom Protista
Eukaryotic, multicellular Heterotrophic (decomposers) Cell wall made mostly of chitin Eg. Mold, Yeast, mushrooms, Athlete’s foot, Penecillium Made up of a mass of small filaments (hypae) “eat” by secreting digestive enzymes Kingdom Fungi
Eukaryotic, multicellular Autotrophic Cell wall of cellulose Eg. Green algae, moss, ferns, flowering plants, trees Contain chloroplasts Kingdom Plantae
Eukaryotic, multicellular Autotrophic No cell walls Eg. termites, seahorses, snakes, goats, gorillas Kingdom Animalia
Which Kingdom does it belong in? Duck – Billed Platypus
Which Kingdom does it belong in? Duck – Billed Platypus Animalia
Bread Mold
Fungi
Volvox
Protista
Green Moss
Plantae
Intro to Ecology
On a blank piece of paper create a word web of all terms involved with ecosystems What is an Ecosystem?
Abiotic and biotic features of a given area Eg. temperature levels, rainfall, soil types, animals, plants All organisms in an ecosystem referred to as a community Changes in ecosystem over time = ecological succession Ecosystem
Mount St. Helen’s Case Study